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Combination and key operated padlock with indicator for advising that the clock has been opened with a key

a combination and key technology, applied in the field of combination and key operated padlocks, can solve problems such as not disclosing

Inactive Publication Date: 2008-01-17
GLOX IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The present invention is a combination and key operated padlock with a retractable indication member. The padlock can be opened by inserting a key and the indication member will retract again only by turning the dials to the correct combination. The key turning mechanism includes a cylinder, keyhole, and projection, and the spring-biased pivot assembly includes a latch and engagement member. The shackle includes one spring-biased leg and the other leg has a termination end received in the hole in the locked position. The detent mechanism includes a sliding member, stop member, and tab, and the pivotal indicator includes an arm and indication member. The invention provides a convenient and secure way to lock and unlock the padlock."

Problems solved by technology

However, both documents do not disclose a combination and key operated padlock having an indicator member for advising the owner of the lock that the lock has been opened with a key.

Method used

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  • Combination and key operated padlock with indicator for advising that the clock has been opened with a key
  • Combination and key operated padlock with indicator for advising that the clock has been opened with a key
  • Combination and key operated padlock with indicator for advising that the clock has been opened with a key

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Experimental program
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Embodiment Construction

[0017]Referring to FIGS. 1 to 9, a combination and key operated padlock in accordance with a preferred embodiment of the invention comprises a housing 10, a dial assembly 20, a key turning mechanism 30, a pivot assembly 40, a push button 50, a U-shaped shackle 60, a detent mechanism 70, an indicator 80, and a leaf spring 90. Each component will be described in detail below.

[0018]The substantially rectangular housing 10 comprises a cover 101 having an aperture 102 on a top wall, three rectangular first openings 103 formed therethrough, and a plurality of peripheral recesses (not numbered); and a base (not numbered) including, on its inner surface, a plurality of spaced raised seats 11 having a half-circular groove 12, a compartment 13 parallel to the seats 11, a pin 14 at one corner, a cavity 15 at a right side, a hole 16 on a top wall, a post 17 adjacent the cavity 15, a receptacle 18 in the cavity 15 adjacent the post 17, and a second opening 19 formed on the mouth of the cavity 15...

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PUM

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Abstract

A combination and key operated padlock includes a housing including a top aperture, a dial assembly, a key turning mechanism, a spring-biased pivot assembly, a spring-biased push button, a shackle including one spring-biased leg and the other leg having a slot proximate its terminating end, a spring-biased T-shaped detent mechanism, and a spring-biased pivotal indicator. Inserting a key and clockwise turning the key will open the padlock and project an indication member out of the aperture for advising an owner of the padlock that the padlock has been opened by means of a key. Turning the dials to a correct combination will unlock the padlock and retract the indication member into the aperture again.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of Invention[0002]The present invention relates to combination and key operated padlocks and more particularly to such a combination and key operated padlock having a retractable indication member for advising the owner of the padlock that the padlock has been opened by means of a key.[0003]2. Related Art[0004]Combination and key operated padlocks (i.e., padlocks that can be operated by combination or by key) are well known in the art. For example, U.S. Pat. No. 6,928,842 B01 discloses a combination lock having a key opening mechanism. Also, U.S. Pat. No. 6,792,778 B1 discloses a combination lock. However, both documents do not disclose a combination and key operated padlock having an indicator member for advising the owner of the lock that the lock has been opened with a key. Thus, the need for improvement still exists.SUMMARY OF THE INVENTION[0005]It is therefore an object of the present invention to provide a combination and key operated ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): E05B37/02
CPCE05B35/105E05B39/00E05B37/025E05B37/0034Y10T70/415
Inventor HUANG, CHIEN-CHIEN
Owner GLOX IND